#content .right_content .brief {
  line-height: 2;
}
#content .right_content .brief img {
  max-width: 100%;
}
#content .cell {
  padding: 60px 0;
}
#content .cell .cell_content {
  box-sizing: border-box;
  margin: auto;
  padding-left: 150px;
  width: 1200px;
  overflow: hidden;
}
#research_ideas {
  background: url("../img/cell_bg6.jpg") center center;
  background-size: cover;
}
#research_ideas .cell_title {
  color: #fff;
}
#research_ideas .cell_title span {
  color: #fff;
}
#research_ideas .txt img {
  max-width: 100%;
}
/* 主题规划 */
#theme_planning ul {
  margin-top: 60px;
  display: flex;
  flex-flow: row wrap;
  position: relative;
}
#theme_planning ul::before {
  content: "";
  width: 0;
  height: 100%;
  border-left: 1px solid #fff;
  position: absolute;
  right: 0;
  top: 0;
}
#theme_planning ul::after {
  content: "";
  width: 100%;
  height: 0;
  border-bottom: 1px solid #fff;
  position: absolute;
  left: 0;
  bottom: 0;
}
#theme_planning ul li {
  box-sizing: border-box;
  width: 175px;
  border-bottom: 1px solid #e2e2e2;
  border-right: 1px solid #e2e2e2;
  text-align: center;
}
#theme_planning ul li .img {
  margin: auto;
  width: 100px;
  height: 100px;
}
#theme_planning ul li .name {
  margin: 20px 0;
}
/* 课程特色 */
#curriculum_features {
  background-color: #f0f0f0;
}
#curriculum_features .list {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  width: 100%;
}
#curriculum_features .list li {
  box-sizing: border-box;
  margin: 25px 0;
  width: 510px;
  overflow: hidden;
  display: flex;
  align-items: center;
}
#curriculum_features .list li span {
  margin-right: 15px;
  width: 90px;
  height: 90px;
  line-height: 90px;
  font-size: 50px;
  text-align: center;
  color: #fff;
  position: relative;
  z-index: 1;
}
#curriculum_features .list li span::before {
  content: "";
  width: 60px;
  height: 60px;
  background-color: #8f000b;
  transform: rotate(45deg);
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  z-index: -1;
}
#curriculum_features .list li div {
  flex: 1;
  overflow: hidden;
}
#curriculum_features .list li .title {
  font-size: 20px;
}
#curriculum_features .list li .txt {
  line-height: 1.7;
  color: #666;
}
